cairodriver/erase.c

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/*!
   \file lib/cairodriver/erase.c
 
   \brief GRASS cairo display driver - erase screen
 
   (C) 2007-2008 by Lars Ahlzen and the GRASS Development Team
 
   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.
 
   \author Lars Ahlzen <lars ahlzen.com> (original contributor)
   \author Glynn Clements
 */
 
#include "cairodriver.h"
 
/*!
   \brief Erase screen
 */
void Cairo_Erase(void)
{
    G_debug(1, "Cairo_Erase");
 
    cairo_save(cairo);
    cairo_set_source_rgba(cairo, ca.bgcolor_r, ca.bgcolor_g, ca.bgcolor_b,
                          ca.bgcolor_a);
    cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
    cairo_paint(cairo);
    cairo_restore(cairo);
 
    ca.modified = 1;
 
    return;
}